Combined bathtub and skirt



FIG. 1 is a perspective view taken from the top, front and left end of a combined bathtub and skirt showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof; and

FIG. 4 is a left end elevational view thereof. 

The ornamental design for a combined bathtub and skirt, substantially as shown. 